# Async instrument accros a transition timeline

**URL:** <https://qa.fmod.com/t/async-instrument-accros-a-transition-timeline/22635>\
**Category:** FMOD Studio\
**Created:** [February 26, 2025, 12:12pm UTC](https://qa.fmod.com/t/async-instrument-accros-a-transition-timeline/22635 "2025-02-26T12:12:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alcibiade](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/alcibiade/32/4284_2.png) [@Alcibiade](https://qa.fmod.com/u/Alcibiade)\
**Post date:** [February 26, 2025, 12:12pm UTC](https://qa.fmod.com/t/async-instrument-accros-a-transition-timeline/22635/1 "2025-02-26T12:12:21Z")

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Hi FMOD guys, it has been a long time!

I know the loss of continuity of an async instrument accros a transition timeline has always been a longtime problem, but I don’t understand why the normal untrigger rule isn’t just applied:

[![](https://img.youtube.com/vi/vjykte_V5wg/hqdefault.jpg "Zodiac Legion fspro Event Editor 2025 02 26 13 02 21") ](https://www.youtube.com/watch?v=vjykte_V5wg)

It’s a rather strange behaviour. The release only triggers if the “source” is fully snapped to the right of the transition, instead it stops the instrument as if the “cut” option were checked (which it is not), though the instrument visually still shows as if it were active!  
In my case, snapping the source to the right is an ok workaround, but it triggers the release too late for my taste…

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<div class="post-metadata">

**Author:** ![joseph](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/joseph/32/264_2.png) [@joseph](https://qa.fmod.com/u/joseph)\
**Post date:** [March 6, 2025, 2:44am UTC](https://qa.fmod.com/t/async-instrument-accros-a-transition-timeline/22635/2 "2025-03-06T02:44:41Z")

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After some investigation, I’ve determined that this is a bug. Accordingly, I’ve added it to our bug tracker to be fixed in an upcoming version of FMOD Studio.